Q54 · CSIR NET Chemistry, June 2017
Paper: CSIR NET June 2017 · Subject: Physical Chemistry · Chapter: Chemical Kinetics · Topic: Chemical Kinetics – General · Marks: 2 · Difficulty: Hard
Photochemical decomposition of HI takes place with the following mechanism
$\mathrm{HI} + h\nu\,(I_a) \rightarrow \mathrm{H + I}$; $\mathrm{H + HI} \xrightarrow{k_1} \mathrm{H_2 + I}$; $\mathrm{I + I + M} \xrightarrow{k_2} \mathrm{I_2 + M}$
Considering hydrogen (H) and iodine (I) atoms as intermediates, the rate of removal of HI is(a)$I_a/2$
(b)$I_a$
(c)$2I_a$
(d)$I_a2$
Answer
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Explanation
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Study loop for Chemical Kinetics